Answer:
I believe the correct answer is B. Five
B, because it's not an advantage for something to be expensive and time consuming
Today, the Earth's axis is tilted 23.5 degrees from the plane of its orbit around the sun.
Answer:
Solar waves with wavelengths between 160 and 400 nanometers are known as ultraviolet rays and carry higher levels of energy than sunlight. Solar waves with wavelengths between 780 and 1,500 nanometers are known as infrared rays and carry lower levels of energy than sunlight.
